Feature:
Portability and time to set up/tear down are the best features besides the excelent sound. I got the optional roller bags and the mic stan adaptor for the mixer. We were set up in less than 15 minutes with two keys, bass, drum machine, two guitars, two vocal mics and a CD player.

Quality:
The speakers are very durable made with metal screws and faceplate (not plastic). The mixer unit, which can be left in the back of one of the speakers, stayed cool through 3 hours of playing.

Value:
You can't find better sound for the buck...trust me I looked.

Desirability:
This thing is impressive. We walked in the door with two roller bags and the host wasn't afraid that we'd be too loud. Some guests who are musicians marveled at how good of sound we had. Two even said they want to get the system!

Sound:
The sound quality rivals our band's larger PA. Clear highs and surprisingly good lows for 10 inch speakers. It's Yamaha...great sound seems to be their standard.

Ease of Use:
Very easy to use. Simple and straightforward mixing console. While compact, BIG on sound. 500 watts was more than ample to fill a hotel size meeting room with 200 guests.

Support:
Haven't needed support other than in researching the features. Yamaha was responsive and they offer a great waaranty on their gear.

Overall:
This will be the mainstay of our small coffee house/small hotel lounge gigs. We'll reserve our 15's and 14 channel board/monitors for large rooms/outdoors. This little workhorse can carry the load without us breaking our backs or compromising our sound.

Feature:
The most useful feature is its portability, and the clearity of sound. I wish it has a wider rage of power. I took it for a presentation in UK where they use 240 volts I had to buy another step transformer for it consider making it like the computer where you can switch to any rage of pwer available bearing its portability in mind, this product could be taken any where around the globe.

Quality:
This product is well built with portability and durability in mind. The only suggestion I have is thatin next product it will be great to make it possible to invert the amplifier unit inside out the speaker compartment so as to protect the knob while on transit

Sound:
I do not have any tip I believe the engineers are coming up with stage pass 800 or so. Therefore the great job they did in SP300then 500got better and yet would be much better as it progresses. We cannot ask for much more than rely on them but if they can make it such that powered speakers dont turn off the spplied speakers that would be great I pluged in the Roland 500 to it and the speakers that came with it cut off I thought they blew up but later realized what happend. Please look into it out for out put, clearity and on the fo functions it is great for its price,think of making it possible to use the fiberoptic input for greater sound effect during film and movie presentations.

Ease of Use:
Great and easy to use like I said earlier when my Roland c500 was pluged in, the speakers that came with it cut off. I do not know if anyone has experienced it but I found it a con

Support:
yes not quite easy to reach but very friendly.

Overall:
this is a leading cutting edge portable gear non that close.

Feature:
Would be an even better system if there was a send and return for adding an extra effects unit. The built in reverb isn't great & there is no seperate level control per channel(only an on/off button) so once it's on, it's on with the same amount on everything. Also a little more control over EQ would have been a nice feature.

Quality:
Sturdy speakers - solid moulded plastic. Very clever design as the mixer slots into the back of one and all cables can be stored in the back of the other

Value:
Great value - nothing in this price range comes close

Desirability:
This PA is super sexy. Looks great, sounds great, amazing value for money and you wont break your back carting it around!!

Sound:
For such a compact unit the sound quality is amazing. Bottom end is warm and punchy, no nasty honky mid frequencies and crisp clean high end. Really couldn't fault it!

Ease of Use:
Barring what I mentioned above, this PA is super easy to set up & use

Overall:
I use this PA for church weddings and pre dinner gigs.It has more than enough power for these applications. I have used it a couple of times for night time gigs (100-150 people in a small/medium size room) but felt I was driving it a bit to hard although there were no sound quality issues. Would love if Yamaha would address the issues I mentioned above and also consider bringing out the stagepas 800 or even 1000!!! I would buy another one tomorrow if it were lost or stolen

Feature:
I got the mic stand adaptor, speaker stands and roller bags ( you'll need one for each speaker) for east of transport.

Quality:
Truly gig worthy and consistent night after night.

Value:
I can't believe what I got for under a grand!

Desirability:
Really cool...roll 'em in, put the speakers/mixer on stands and plug n play. It doesn't get any better.

Sound:
Clear and crisp...I use a tube mic preamp, Aphex Aural Exicter and a digital reverb unit to really expand the unit. Small to medium venues--this is THE ANSWER. The low end is tight,with good boom; not earthshaking. Audiences comment on the clarity of our sound.

Ease of Use:
My teens have used it for their parties. Nothing complicated.

Support:
N/A

Overall:
If this were to get damaged, lost, stolen I'd have another one the next day.

Feature:
The mixer is average. Nothing special here... The reverb is a joke... No mid range EQ.

Quality:
Speakers sound pretty good. Again mixer needs more features

Value:
For the price the mixer needs to be much better.

Sound:
Sounds pretty good for a small to mid size room.

Ease of Use:
Easy as 123...Plug and play... very LIGHT...Great for small gigs on the road

Support:
No need